Update 2:50 pm EDT: Everything went as planned, with SpaceX and NASA reporting a successful splashdown. The astronauts radioed in from inside the capsule that they were feeling good. A recovery team has begun the process of extracting the crew from the capsule, while the astronauts run some final checks....
Previous infections with common cold viruses can train the immune system to recognize SARS-CoV-2, the virus that causes COVID-19, according to a new study. The study, published Aug. 4 in the journal Science, found that immune cells known as T cells that recognize common cold coronaviruses also recognize specific sites...